Regular in codimension one
= Regular in codimension one
A Noetherian scheme is regular in codimension one when every local ring at a codimension-one point is regular. For an integral scheme these local rings are then discrete valuation rings.
= Regular in codimension one
A Noetherian scheme is regular in codimension one when every local ring at a codimension-one point is regular. For an integral scheme these local rings are then discrete valuation rings.